List of whitelisted and greylisted mutators

The following is a list of whitelisted, greylisted, and official mutators. Mutators modify various aspects of the game, such as replacing all specimen with a certain specimen, however they need to be whitelisted to allow for perk progression. Greylisted mutators disable perk progression, but still allow the use of perks. Unlisted mutators disable perks altogether and require a game restart to allow their use again and to allow achievements to be acquirable again. In the June 29th 2010 update, all the specimen replacement mutators originally packaged with the game were removed from the whitelist to prevent people easily experience farming. Due to the new update, all mutators that are not whitelisted, are now greylisted.

This mutator redesigns the buy menu in the trader, modifying the quick perk change icons into filters. These filters are used to reduce the weapon list to perk specific weapons, so the weapon list is not always filled with the entire selection.

Super Zombies alters the core mechanics of the specimens, giving them new abilities and behaviors when engaging the players. Version 2.2.1 no longer works, the current version 2.3.2. is not whitelisted.